	
	
	use "$conf/raw/Gallup_pre2009_income.dta", clear
	
	rename *, lower
	replace wp12=. if wp12>90
	label drop WP12
	replace wp1230=. if wp1230>90
	label drop WP1230
	gen headcount=wp12+wp1230

	keep wpid inc_001-income_7 headcount
	
	foreach x of var inc* headcount {
		
		rename `x' `x'_old
		
	}
	
	save "$conf/income_pre2009.dta", replace